Using this muffler is easy. First, make sure your vehicle's exhaust system is cool. Then, carefully attach the muffler to the exhaust pipe using the appropriate tools. When installing, ensure a tight fit to prevent any exhaust leaks. As for maintenance, regularly check the muffler for any signs of rust or damage. If you notice any issues, it's best to replace it promptly. Also, avoid driving through deep water as it can damage the muffler. Keep it clean by gently wiping it down with a soft cloth from time to time.